Fashion designer Karl Lagerfeld opened the LeWeb conference in Paris this morning by confirming the details of his exclusive range with Net-A-Porter.

During the informal Q&A with LeWeb founder Loic Le Meur, Net-A-Porter's executive chairman Natalie Massenet revealed that the new ‘Karl’ range would be available to buy from January 25 2012.

People can visit net-a-porter.com to sign-up and receive more information in the coming weeks. Massenet said that the cross-channel marketing campaign will involve social media, mobile, augmented reality and a dedicated app.

More than half of marketers admit that they are not using lead generation effectively, according to new research from the Internet Advertising Bureau (IAB).

The IAB says that the lead generation sector grew by 20% in the first half of 2011, faster than the industry’s understanding of the discipline.

The survey polled 125 marketers from advertisers, agencies, networks and suppliers, and found that although the majority of respondents understand how lead generation can increase a customer base, 52% said they weren't using it in the most effective way.

In 40 days brands will be able to apply for their own dot brand web extension.

The 92 day window for applications to the Internet Corporation for Assigned Names and Numbers (ICANN) opens on January 12, 2012, so next year we might be flooded with the likes of ‘news.pepsi’ addresses instead of ‘pepsi.com/news’.

Mobile conversion rates are still lagging behind tablets and desktops, according to new statistics from Monetate.

The study, which monitored traffic and purchases from Thanksgiving to ‘Cyber Monday’, found that mobile achieved a conversion rate of 2.3% compared to 5.4% and 5% for desktops and tablets respectively.